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[linux-dvb] High latency switching voltage with budget-ci card
I haven't dug into the code yet, but I am seeing very high latency
(5-6 ms) to switch the voltage on a Nova-S (budget-ci) card from low
to high (high to low has virtually no latency). I don't see this with
a full-feature Nexus-S card. This high latency was scewing up the
Legacy-switch control with these cards. My fix was to detect the time
spent during a volatge change, and only sleep for the remainder, but
(a) this adds a lot of needless gettimeofday() calls, and (b) I still
occasionally fail to tune due to longer than 8ms latencies. Before I
submit the patch, does anyone know whether this can be corrected in
the budget-ci driver (a much preferrable situation)?
Thanks.
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